Heater.



PATENTED MAR. 19, 1'907.

A. M. CLARK.

. HEATER. APPLICATION I'ILED MAR 12, 1906.

- UNITE STATES Parana orrIoE.

HEATER.

Specification of Letters Patent.

Patented March 19, 1907.

Application filed March 12, 1906. Serial No. 305,601-

To all whom it may concern.-

Be it known that I, ALBERT M. CLARK, a citizen of the United States, residing at Marshalltown, in the county of Marshall and State of Iowa, have invented a certain new and useful Heater, of which the following is a specification.

The object of my invention is to provide a heater of simple, durable, and inexpensive construction in which the smoke arising from the fuel may be made to pass over a heated metal plate andat the same time fresh air be commingled with the smoke in such quantities as to cause the smoke to ignite and burn and the heat generated by the burning smoke to be utilized for radiating purposes.

A further object is to provide simple and durable means whereby the products of combustion arising from the grate may be made to pass through a direct passage-way to the flue for the purpose of producing a strong draft when desired.

My invention consists in certain details in the construction, arrangement, and combination of the various parts of the device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which Figure 1 shows a vertical central sectional view of a heater embodying my invention. Fig. 2 shows a horizontal sectional view on the line 2 2 of Fig. 1. Fig. 3 shows a horizontal sectional view on the line as a: of Fig. 1 looking upwardly. Fig. 4 shows a view on the same line looking downwardly, and Fig. 5 shows a horizontal sectional view through the smoke-igniting plate.

Referring to the accompanying drawings, I have used the reference-numeral 10 to indicate the lower portion of the heater form ing the ash-pit. 11 is a grate therein, and 12 indicates a combustion-chamber having the fuel-door 13 at its front. Extending horizontally across the top of the combustionchamber is the smoke-igniting plate 14, having a central opening 15 and also an opening 16 at one side thereof. Formed within the plate 14 is a cooling-chamber 17, surrounding the openings 15 and 16 and communicating with the passage-ways 18, which lead to the exterior of the plate. These chambers and passage-ways are designed for the purpose of keeping the plate sufliciently cool so that it will not bend or burn out under any of the At the rear of the partition 20 I have formed a damper-casing 22, comprising a top and sides. The damper comprises a crank-shaft 23 and two damper-blades 24 and 25, arranged at right angles to each other, and is of such size and shape that when in the position shown in Fig. 1 it will uncover the'opening 16 and close the opening 15 and also the passage-way through the dampercasing, so that products of combustion arising from the combustion-chamber must pass through the opening 16, then around the partition 20 and into the chamber on the interior of the partition before it may pass upwardly out of the smoke-burning chamber. If the position of the damper is reversed, the blade 24 will close the opening 16. and the blade 25 will uncover the opening 15 and close the opening through the damper-casing, so that the draft from the combustionchamber will pass straight upwardly through the opening 15 to the top of the smoke-burning chamber without passing around the outside of the partition 20.

The top of the smoke-burning chamber comprises a horizontal partition 26, formed with a central draft-opening 27. Formed on the top of the partition 26, surrounding the said opening, is a draft-tube 28, communicating at one side with a chamber 29, which extends to the exterior of the furnace. This chamber 29 is provided with a series of draft- 4 The smoke and combustible gases arising furnace they enter the chamber inside of the I partition 20 and are forced down close to the central portion of the plate 14 and against the blade 25 of the damper by means of the currents of fresh air that enter through the openings 31. passing near the heated plate and being commingled with fresh air it is obvious that and burn, and, further, if the damper is adjusted to its other position the products of combustion will go in a direct line to the flue, although a certain amount of fresh air By having these currents igniting-plate and. means for introducing currents of fresh air into the chamber above the igniting-plate.

In a heater, a combustion-chamber, an igniting-plate above it formed. with two openings, a chamber above the plate formed with an indirect passage- 'a v coimnunicating with one of said openings and a direct passage-way communicating with. the other opening and a damper capable, in one position, of closing the direct passage-way through theigniting- 1 plate and in another position of closing the the smoke and combustible gases will ignite will be commingled with them, and they will be burned when the fire is in proper condition.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States therefor, is

1. In a heater, the combination of a comabove the combustion-chamber and a radiating-chamber above the smoke-burning combustion-chamber and the smoke-burning plate.

2. In a heater, a combustion-clnnnber, a smoke-igniting plate above the combustionchamber having two openings therein, a partition above said plate forming a passage-way through one of said openings around the chamber above the plate, a horizontal plate forming a top for the compartment above the partition formed with an opening in line and means for closing the openings in the ignltmg-plate.

3. In a heater, a combustion-chamber, a

tition above said plate forming a passage-way for directing products of combustion arising through one of said openings around the chamber above the plate, a horizontal plate forming a top for the compartment above the partition and formed with an opening in line with the other openings of the igi'iitingplate, means for closing the openings in the indirect passage-nay 5. 111 a heater, the OOlIllJlllItlOll of a combustion-chamber, a smoke-igniting plate above it formed with two passage-ways, a

smol eburning chamber above the ignitingplate, a circular partition in the smoke-burn- 3 ing chamber spaced apart from the heater- 5 wall and having its edges spaced. apart from each other at the front and. also havn'ig a damper-casing at the rear formed with an opening, a damper formed with two wings in one position covering one of the openings in bust1on-chamber, a smoke-burning chamber the igniting-plate and. the opening in. the damper-casing and in its other position. covcring the other opening in the plate and also chamber, a smoke-igniting plate between the the opening in the damper-casing and a plate at the top of said chamber formed with a dichamber and an upright partition extended 1 root smoke passageway comnnniicating with the central portion of the chamber inside ol the circular partition.

6. In a heater, the combination of a combustion-chamber, a smoke-igniting plate above it formed with two passage-ways, a smoke-burning chamber above it, a circular partitioi'i in the smoke-lnn'ning chamber spaced. apart from the heater-wall and having its edges spaced apart from each other at the front and also having a d an'iper-casing at the rear formed with an opening, a damper formed with two wings in one position. covering one of the openings in the igniting-plate and the opening in the damper-casing and in its other position covering the other opening in.

7 5 the plate and also the opening in the d amperfor directing products of combustion arising i casing and a plate at the top of said chamber formed with a direct smoke passage-way coinmunicating with the central portion of the chamber inside of the circular partition, said j upper plate formed with an air-chamber hav- W1th the other openlng of the igniting-plate in its bottom to discharge air downwardly into the chamber beneath it. smoke-lgniting plate above the combustronj chamber having two openings therein, a par- 7. In a heater, a comlmstion-chamber, smoke-igniting plate at its top formed with a central opening and an opening at its rear, said plate also formed with air-chambers and passageways leading from the exterior of the heater into said air-clmmbers, a circular vertically-arranged partition above the plate with its ends spaced apart at the front and inclined inwardly toward. the center of the heater and also formed at its rear with a damper-casing, a damper formed with two wings, a shaft for operating the damper, said damper in one position closing both the central opening in the igniting plate and the dam er-casing and in its other position closing 0th the opening at the rear of the igniting-plate and the damper-casing, a horizontal plate above the smoke-igniting burning-chamber having a central opening in line with the opening in the smoke-igniting plate and also having a chamber surrounding the 

